A kind of preparation method of metal matrix composite material

A composite material and metal-based technology, applied in the field of metal-based composite material preparation

Active Publication Date: 2018-09-11
泰安蔚蓝金属陶瓷材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although hot isostatic pressing equipment is expensive, the material prepared by this method by applying high pressure has a high degree of densification and good material consistency

Method used

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  • A kind of preparation method of metal matrix composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see figure 1 , the high-melting-point component and the low-melting-point metal component of the metal matrix composite material in this embodiment use silicon powder and aluminum powder respectively, and its preparation method is as follows:

[0029] 1) Take the aluminum powder and silicon powder required for the preparation of materials according to the volume ratio of 1:1, put them into the mixer, and mix the materials to obtain the mixed powder 5, which is set aside;

[0030] 2) Put the mixed powder 5 prepared in step (1) into the thin-walled stainless steel sheath 3, one end of the sheath 3 is welded and closed with a stainless steel sheet; the inside of the sheath 3 is lined with graphite paper 4, pre-pressed at 20MPa, 5min, Then plug the other end of the closed sheath 3 with a plug 2 slightly larger than the inner diameter of the sheath 3, and put it into the mold 1;

[0031] 3) Put the mold 1 filled with the thin-wall stainless steel sheath 3 in step (2) into a...

Embodiment 2

[0036] see figure 1 , the high-melting-point component and the low-melting-point metal component of the metal matrix composite material in this embodiment use silicon carbide powder and aluminum powder respectively, and its preparation method is as follows:

[0037] 1) Take the aluminum powder and silicon carbide powder required for the preparation of materials according to the volume ratio of 45:55, put them into the mixer, and mix the materials to obtain the mixed powder 5, which is set aside;

[0038] 2) Put the mixed powder 5 prepared in step (1) into a thin-walled carbon steel sheath 3, one end of the sheath 3 is welded and closed with a stainless steel sheet, the inside of the sheath 3 is lined with graphite paper 4, and then the inner diameter of the sheath is slightly larger than that of the sheath The plug 2 plugs the other end of the closed sheath and packs it into the mold 1;

[0039] 3) Put the mold 1 packed in the thin-walled stainless steel sheath in step (2) in...

Embodiment 3

[0044] see figure 1 , the high-melting-point component and the low-melting-point metal component of the metal matrix composite material in this embodiment use tungsten powder and copper powder respectively, and its preparation method is as follows:

[0045] 1) Take the tungsten powder and copper powder required for the preparation of materials according to the volume ratio of 52:48, put them into the mixer, and mix the materials to obtain the mixed powder 5, which is set aside;

[0046] 2) Put the mixed powder 5 prepared in step (1) into a thin-walled stainless steel ladle 3, one end of the sheath 3 is welded and closed with a stainless steel sheet, the inside of the sheath 3 is lined with graphite paper 4, pre-pressed at 30MPa for 5min, and then Plug the other end of the closed sheath with a plug slightly larger than the inner diameter of the sheath, and put it into the mold 1;

[0047] 3) Put the mold 1 packed in the thin-walled stainless steel sheath in step (2) into a hot-p...

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Abstract

The invention relates to the field of composite material preparation, and discloses a preparation method of a metal-based composite material. The preparation method comprises the following steps of mixing materials, putting the mixed materials into a sheath, putting the sheath into a mold, putting the mold into a hot pressing device and preparing the composite material according to a certain temperature and certain pressure parameters. The composite material prepared at low cost through the preparation method has the advantages that the compactness degree is high, the consistency of material is good, and the interfacial bonding force between components of the composite material is relatively high; and meanwhile, the preparation method is simple, fast and economical.

Description

(1) Technical field [0001] The invention relates to the field of composite material preparation, in particular to a method for preparing a metal matrix composite material. (2) Background technology [0002] Usually, the preparation of alloys or metal matrix composites needs to be heated above the melting temperature of high melting point components, and the required materials are obtained by smelting or casting. This method requires a lot of heat energy and high equipment investment, which is difficult Prevent abnormal grain growth. Later, people used powder metallurgy to prepare materials. The advantage is that the composition is easy to adjust and the control is accurate; the disadvantage is that the products obtained by sintering often have a large number of pore structures due to the difficult shrinkage of high melting point components. When using hot pressing, it can only be carried out at a relatively low temperature, and the interface bonding strength of the material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/05C22C1/10B22F3/14
CPCB22F3/1035B22F3/15B22F2003/145C22C1/051
Inventor 辛红星王太纪辛海燕李成祥
Owner 泰安蔚蓝金属陶瓷材料有限公司
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